亚稳β钛合金的设计方法及室温变形机制的研究进展  

A Review on Design Methods and Deformation Mechanisms at Room Temperature of Metastableβ-Titanium Alloys

作　　者：杨家坤 包翔云 张金钰[1] 刘刚[1] 孙军[1] YANG Jiakun;BAO Xiangyun;ZHANG Jinyu;LIU Gang;SUN Jun(State Key Laboratory for Mechanical Behavior of Materials,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学金属材料强度国家重点实验室,西安710049

出　　处：《材料导报》2021年第19期19170-19180,共11页Materials Reports

基　　金：国家自然科学基金(51621063,51722104)。

摘　　要：本文介绍了当前亚稳β钛合金中的一些设计方法,包括合金元素法、[Mo]当量、d电子合金设计和e/a电子浓度等,概述了当前亚稳β钛合金中变形机制的一些研究进展,如滑移、机械孪晶和应力诱发相变,并对其变形机制之间的相互联系以及变形机制和合金力学性能之间的关系进行总结,最后讨论了不同因素对变形机制的影响,包括β相稳定性、变形过程、晶粒取向与尺寸以及第二相等。This paper introduces some current design methods for metastable β-titanium alloys including alloy element method, molybdenum equivalency, d electronic alloy design and e/a electron concentration methods. In this paper, the research progress of deformation mechanism in metastable β-titanium alloy, such as slip, deformation twinning and stress-induced phase transformation, is summarized, and the relationship between deformation mechanisms and mechanical properties of β-titanium alloy are summarized. Finally, the effects of different factors on the deformation mechanism are discussed, including the β-phase stability, deformation processes, grain orientation/sizes and the second phase.

关 键 词：亚稳Β钛合金 设计方法 变形机制 力学性能 

分 类 号：TB31[一般工业技术—材料科学与工程] TG146.23[金属学及工艺—金属材料]